Bottle-seal.



M. L. GOLDMAN;

BOTTLE SEAL.

' APPLICATION, FILED 050.23. 1914.

1 MMH 1 Patented July 13, 1915.

. Inventor:

A t ty.

MAYER LEON GOLIIDMAN, 0F YORK, N. Y.

- lBtlTTLE-SJEAL.

Specification of letters Patent.

Patented July 113, l'hllfi.

Application filed December aa'iaia Serial No. 878,701.

To all whom it may concern Be 'it known that T,"MAER LEON Go n- MAN, acitizen of the United States, resldmg in the borough of Brooklyn, cityof New York, county of Kings, and State of New.

York, have invented certain new and useful Improvements in Bottle-Seals,of which the following is a specification.

My invention relates to improvement in bottle seals of the crown captype and my objects are the production of a cap in which the unionbetween the metal shell and the sealing gasket will be more reliable andthe waste in cutting the protective collet between the gasket and shellwill be reduced to a minimum. J

In the drawings, Figure 1, is a sectional view of my improved seal andFigs. 2, 3, 4 and 5 are variations in the form of protective collet.

As is well known, crown caps consist of three members, first the metalshell 1, second, the interposed protective collet 2, generally of paper,and third, the sealing gasket 3, generally of cork. These parts havebeen unlted into a single structure and heretofore this has beenaccomplished commercially by charging the protective collet with a waxyfusible adhesive binding material, under the influence of heat andpressure has caused the sealing gasket to adhere to the protectivecollet and the collet to the metal shell. Owing to the fact that thesealing gaskets have generally been treated with paraffin or glycerin orboth, to render them soft and pliable; the degree of heat necessary tofuse the binder has also melted the paraffin or glycerin or both, andinterfered with a reliable union between the gasket and the collet.

the use of my present invention, retain the full advantage of theprotective collet but do not depend upon it to secure the union of theparts. a

In making my improved seal, the tin plate from which the shells arepunched is first coated on one side with shellac or its equivalent,after which the shells are unched out, with the shellac on the insi e.The protective collet which forms the basis of my invention is nextpunched out but in all cases has a less superficial area than the areaof the gasket or bottom of the shell.

This may be a small collet as shown in Fig.

3 in which the dotted line indicates the gasket and shell bottom areabut is preferably provided with centering extensions 4, as shown in Fig.2, or it may take the form shown in Fig. 4, with the projections 4. If acenter union is desired the collet may take the form shown in Fig. 5with the central opening 5. Either succeeding or during the operation ofassembling the shell, collet and gasket heat is applied, rendering theshellac sticky so that wherever the gasket is in direct contact with theshell, adhesion occurs whether on the edge or center of the face,according to the shape of the collet, and on the edge. By thisconstruction, get an extra holding of the gasket to the shell at thebottom and it is not essential that the collet be sticky or adhesivealthough it may be so if desired. By using a disk of less superficialarea than heretofore, I am enabled to get more from a given amount ofpaper reducing the 'manufacturing cost. The heating to secure the unionmay, if desired, take place during pasteurization after the cap is onthe bottle, although complete union before use is preferable.- Shouldthe sealing gaskets be slightly undersized, they may still be reliably.united to the metal shell by the use of my invention.

I claim 1. A bottle seal comprising a metal shell with an interioradhesive coating, a sealing gasket and an interposed protective colletof less superficial area than the gasket, the surfaces of the gasket andshell in contact being united by the adhesive coating.

2. A bottle seal comprising a metal shell with an interior adhesivecoating, a sealing gasket, an interposedprotective collet of lesssuperficial area than the gasket, provided with centering extensions,the surfaces of the gasket and shell in contact being united by theadhesive coating.

'3. A bottle seal comprising a metal shell with an interior adhesivecoating, a sealing gasket, an interposed protective collet of lesssuperficial area than the gasket saturated with an adhesive, thesurfaces of the gasket,

shell and collet in contact being united. by

the adhesives.

In testimony whereof I have afiixed my signature in presence of twowitnesses.

' MAYER LEON GOLDMAN.

Witnesses:

"ROBERT E. KIIILGORE,

Mar Mplhmr.

